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Finding the Fourth Proportional to 334,503.36, 501,368.40 and 154,212.12

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Solution

The fourth proportional to 334,503.36, 501,368.40 and 154,212.12 is: 231,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,503.36 : 501,368.40 = 154,212.12 : x
  2. Step 2: Convert to fraction form
    334,503.36/501,368.40 = 154,212.12/x
  3. Step 3: Cross multiply
    334,503.36x = 501,368.40 × 154,212.12
  4. Step 4: Simplify right side
    334,503.36x = 77,317,083,865.01
  5. Step 5: Solve for x
    x = 77,317,083,865.01/334,503.36
  6. Step 6: Final answer
    x = 231,139.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.